MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Lennox syndrome
A severe form of epilepsy that is characterized by the onset in early childhood of frequent seizures of multiple types, developmental delay, a particular brain wave pattern (a slow spike-and-wave pattern), and behavioral disturbances with…
Read the definitionRandom terms
Show more- Small inhibitory RNA See: siRNA
- Obstructive sleep apnea Sleep apnea (OSA): Sleep apnea is a breathing disorder characterized by brief interruptions of breathing…
- Peptic ulcer Peptic ulcer: A hole in the lining of the stomach, duodenum, or esophagus. A peptic ulcer of the stomach is…
- Somnambulist Sleep talking. Talking in one's sleep is considered a normal phenomenon that is of no medical or…
- Lab result The result of a test done in a laboratory
- Injury, needlestick See: Needlestick injury
- Thrive, failure to (FTT) Refers to a child whose physical growth is significantly less than that of peers. There is no official…
- Bronchospasm, exercise-induced Also called exercise-induced asthma, this is asthma that is triggered by vigorous physical activity…
- Total parenteral nutrition Intravenous feeding that provides a patient with all of the fluid and the essential nutrients they need when…
- Syndrome, HELLP See: HELLP syndrome
- Lacrimation One of the main types of encephalitis caused by an arbovirus in the US. An arbovirus is a virus that is…
- Acidosis Too much acid in the body, a distinctly abnormal condition resulting from the accumulation of acid or from…